Home / 1,979,638.50-2,731,908.42-1,074,220.50

Finding the Fourth Proportional to 1,979,638.50, 2,731,908.42 and 1,074,220.50

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Solution

The fourth proportional to 1,979,638.50, 2,731,908.42 and 1,074,220.50 is: 1,482,428.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979,638.50 : 2,731,908.42 = 1,074,220.50 : x
  2. Step 2: Convert to fraction form
    1,979,638.50/2,731,908.42 = 1,074,220.50/x
  3. Step 3: Cross multiply
    1,979,638.50x = 2,731,908.42 × 1,074,220.50
  4. Step 4: Simplify right side
    1,979,638.50x = 2,934,672,028,886.61
  5. Step 5: Solve for x
    x = 2,934,672,028,886.61/1,979,638.50
  6. Step 6: Final answer
    x = 1,482,428.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.